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The mouse Engrailed-1 gene and ventral limb patterning.
Nature 382, 360-363 (1996)
During vertebrate limb development, positional information must be specified along three distinct axes. Although much progress has been made in our understanding of the molecular interactions involved in anterior-posterior and proximal-distal limb patterning, less is known about dorsal-ventral patterning. The genes Wnt-7a and Lmx-1, which are expressed in dorsal limb ectoderm and mesoderm, respectively, are thought to be important regulators of dorsal limb differentiation. Whether a complementary set of molecules controls ventral limb development has not been clear. Here we report that Engrailed-1, a homeodomain-containing transcription factor expressed in embryonic ventral limb ectoderm, is essential for ventral limb patterning. Loss of Engrailed-1 function in mice results in dorsal transformations of ventral paw structures, and in subtle alterations along the proximal-distal limb axis. Engrailed-1 seems to act in part by repressing dorsal differentiation induced by Wnt-7a, and is essential for proper formation of the apical ectodermal ridge.
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Publication type
Article: Journal article
Document type
Scientific Article
Language
english
Publication Year
1996
HGF-reported in Year
0
ISSN (print) / ISBN
0028-0836
e-ISSN
1476-4687
Journal
Nature
Quellenangaben
Volume: 382,
Issue: 6589,
Pages: 360-363
Publisher
Nature Publishing Group
Publishing Place
London
Reviewing status
Peer reviewed
Institute(s)
Institute of Developmental Genetics (IDG)
PubMed ID
8684466
Erfassungsdatum
1996-12-31